remember that tapioca and rice syrups dont have te flavor profile that sorghum does, so youll want to minimash/steep/ find some vague way of adding grain flavors
for AG, aim high, AIM REALLY HIGH, i get sub 50% effeciency. ( typical run 5lbs of chestnuts+ 2-3lbs rice flakes+ 1-2lb honey=4-5%abv...